1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2000, 2001 Michael Smith
5 * Copyright (c) 2000 BSDi
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30 /*
31 * Print information about system device configuration.
32 */
33
34 #include <sys/types.h>
35 #include <err.h>
36 #include <errno.h>
37 #include <stdio.h>
38 #include <stdlib.h>
39 #include <string.h>
40 #include <unistd.h>
41 #include "devinfo.h"
42
43 static int rflag;
44 static int vflag;
45
46 static void print_resource(struct devinfo_res *);
47 static int print_device_matching_resource(struct devinfo_res *, void *);
48 static int print_device_rman_resources(struct devinfo_rman *, void *);
49 static int print_device(struct devinfo_dev *, void *);
50 static int print_rman_resource(struct devinfo_res *, void *);
51 static int print_rman(struct devinfo_rman *, void *);
52
53 struct indent_arg
54 {
55 int indent;
56 void *arg;
57 };
58
59 /*
60 * Print a resource.
61 */
62 void
print_resource(struct devinfo_res * res)63 print_resource(struct devinfo_res *res)
64 {
65 struct devinfo_rman *rman;
66 int hexmode;
67
68 rman = devinfo_handle_to_rman(res->dr_rman);
69 hexmode = (rman->dm_size > 1000) || (rman->dm_size == 0);
70 printf(hexmode ? "0x%jx" : "%ju", res->dr_start);
71 if (res->dr_size > 1)
72 printf(hexmode ? "-0x%jx" : "-%ju",
73 res->dr_start + res->dr_size - 1);
74 }
75
76 /*
77 * Print resource information if this resource matches the
78 * given device.
79 *
80 * If the given indent is 0, return an indicator that a matching
81 * resource exists.
82 */
83 int
print_device_matching_resource(struct devinfo_res * res,void * arg)84 print_device_matching_resource(struct devinfo_res *res, void *arg)
85 {
86 struct indent_arg *ia = (struct indent_arg *)arg;
87 struct devinfo_dev *dev = (struct devinfo_dev *)ia->arg;
88 int i;
89
90 if (devinfo_handle_to_device(res->dr_device) == dev) {
91 /* in 'detect' mode, found a match */
92 if (ia->indent == 0)
93 return(1);
94 for (i = 0; i < ia->indent; i++)
95 printf(" ");
96 print_resource(res);
97 printf("\n");
98 }
99 return(0);
100 }
101
102 /*
103 * Print resource information for this device and resource manager.
104 */
105 int
print_device_rman_resources(struct devinfo_rman * rman,void * arg)106 print_device_rman_resources(struct devinfo_rman *rman, void *arg)
107 {
108 struct indent_arg *ia = (struct indent_arg *)arg;
109 int indent, i;
110
111 indent = ia->indent;
112
113 /* check whether there are any resources matching this device */
114 ia->indent = 0;
115 if (devinfo_foreach_rman_resource(rman,
116 print_device_matching_resource, ia) != 0) {
117
118 /* there are, print header */
119 for (i = 0; i < indent; i++)
120 printf(" ");
121 printf("%s:\n", rman->dm_desc);
122
123 /* print resources */
124 ia->indent = indent + 4;
125 devinfo_foreach_rman_resource(rman,
126 print_device_matching_resource, ia);
127 }
128 ia->indent = indent;
129 return(0);
130 }
131
132 static void
print_dev(struct devinfo_dev * dev)133 print_dev(struct devinfo_dev *dev)
134 {
135
136 printf("%s", dev->dd_name[0] ? dev->dd_name : "unknown");
137 if (vflag && *dev->dd_desc)
138 printf(" <%s>", dev->dd_desc);
139 if (vflag && *dev->dd_pnpinfo)
140 printf(" pnpinfo %s", dev->dd_pnpinfo);
141 if (vflag && *dev->dd_location)
142 printf(" at %s", dev->dd_location);
143 if (!(dev->dd_flags & DF_ENABLED))
144 printf(" (disabled)");
145 else if (dev->dd_flags & DF_SUSPENDED)
146 printf(" (suspended)");
147 }
148
149
150 /*
151 * Print information about a device.
152 */
153 int
print_device(struct devinfo_dev * dev,void * arg)154 print_device(struct devinfo_dev *dev, void *arg)
155 {
156 struct indent_arg ia;
157 int i, indent;
158
159 if (vflag || (dev->dd_name[0] != 0 && dev->dd_state >= DS_ATTACHED)) {
160 indent = (int)(intptr_t)arg;
161 for (i = 0; i < indent; i++)
162 printf(" ");
163 print_dev(dev);
164 printf("\n");
165 if (rflag) {
166 ia.indent = indent + 4;
167 ia.arg = dev;
168 devinfo_foreach_rman(print_device_rman_resources,
169 (void *)&ia);
170 }
171 }
172
173 return(devinfo_foreach_device_child(dev, print_device,
174 (void *)((char *)arg + 2)));
175 }
176
177 /*
178 * Print information about a resource under a resource manager.
179 */
180 int
print_rman_resource(struct devinfo_res * res,void * arg __unused)181 print_rman_resource(struct devinfo_res *res, void *arg __unused)
182 {
183 struct devinfo_dev *dev;
184
185 printf(" ");
186 print_resource(res);
187 dev = devinfo_handle_to_device(res->dr_device);
188 if ((dev != NULL) && (dev->dd_name[0] != 0)) {
189 printf(" (%s)", dev->dd_name);
190 } else {
191 printf(" ----");
192 }
193 printf("\n");
194 return(0);
195 }
196
197 /*
198 * Print information about a resource manager.
199 */
200 int
print_rman(struct devinfo_rman * rman,void * arg __unused)201 print_rman(struct devinfo_rman *rman, void *arg __unused)
202 {
203 printf("%s:\n", rman->dm_desc);
204 devinfo_foreach_rman_resource(rman, print_rman_resource, 0);
205 return(0);
206 }
207
208 static int
print_path(struct devinfo_dev * dev,void * xname)209 print_path(struct devinfo_dev *dev, void *xname)
210 {
211 const char *name = xname;
212 int rv;
213
214 if (strcmp(dev->dd_name, name) == 0) {
215 print_dev(dev);
216 if (vflag)
217 printf("\n");
218 return (1);
219 }
220
221 rv = devinfo_foreach_device_child(dev, print_path, xname);
222 if (rv == 1) {
223 printf(" ");
224 print_dev(dev);
225 if (vflag)
226 printf("\n");
227 }
228 return (rv);
229 }
230
231 static void __dead2
usage(void)232 usage(void)
233 {
234 fprintf(stderr, "%s\n%s\n%s\n",
235 "usage: devinfo [-rv]",
236 " devinfo -u",
237 " devinfo -p dev [-v]");
238 exit(1);
239 }
240
241 int
main(int argc,char * argv[])242 main(int argc, char *argv[])
243 {
244 struct devinfo_dev *root;
245 int c, uflag, rv;
246 char *path = NULL;
247
248 uflag = 0;
249 while ((c = getopt(argc, argv, "p:ruv")) != -1) {
250 switch(c) {
251 case 'p':
252 path = optarg;
253 break;
254 case 'r':
255 rflag++;
256 break;
257 case 'u':
258 uflag++;
259 break;
260 case 'v':
261 vflag++;
262 break;
263 default:
264 usage();
265 }
266 }
267
268 if (path && (rflag || uflag))
269 usage();
270
271 if ((rv = devinfo_init()) != 0) {
272 errno = rv;
273 err(1, "devinfo_init");
274 }
275
276 if ((root = devinfo_handle_to_device(DEVINFO_ROOT_DEVICE)) == NULL)
277 errx(1, "can't find root device");
278
279 if (path) {
280 if (devinfo_foreach_device_child(root, print_path, (void *)path) == 0)
281 errx(1, "%s: Not found", path);
282 if (!vflag)
283 printf("\n");
284 } else if (uflag) {
285 /* print resource usage? */
286 devinfo_foreach_rman(print_rman, NULL);
287 } else {
288 /* print device hierarchy */
289 devinfo_foreach_device_child(root, print_device, (void *)0);
290 }
291 return(0);
292 }
293